Tire valve



T R E .Nl E w H C s, C. M. a 2 9 1. 9, .L C O TIRE VALVE Filed March ze, 1918 INVENTOR WITNESSv Fatented @ein 9, i923.

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Application filed March 28, 1918 Serial No. 225,162.

To all whom z't may concern:

Be it known that I, MAXIMILIAN CHARLES SCHWEINERT, a citizen of the United States of America, residing in West Hoboken, in

the county of Hudson and'State of New Jersey, have invented certain new and useful Improvements in Tire Valves, of which the following is a specification.

This invention relates to improvements in tire valves and aims to provide certain improvements therein.

The invention is particularly adapted to a repair part for use in connection with the European type of valve, although it is, of course, susceptible to use in an original structure.' The European type of valve comprises a shell or casing formed with an interior tapered seat near its top and the valve proper comprises an elongated plug adapted to fit within' the casing and provided with a lateral opening. Surrounding the lower part of the plug is an' elastic sleeve which normally hugs the plug, especially to prevent back-pressure of air, while being suliciently elastic to permit ingress of air through the lateral opening and downwardly past the sleeve. lThe plug is commonly provided with a tapered shoulder adapted to engage the internal tapered shoulder of the shell, and a packing being provided to make a tight joint between the two. Usually this packingv is formed of the upper end of `the elastic sleeve. The .upper end of the shell is slotted to receive a pair of lugs carried by the plug,A and a swivelled sleeve or. coupling is provided to connect the plug and shell.

According t0 the present invention l. prof vide preferably a repair part which is designed to lbe coupled with the shell of such a structure, which repair part is adapted to enclose a valve inside of the American type, so that if a tire is already provided with Ia European valve, andthe valve proper becomes injured, the American repair part kcan be easily substituted for it without removing the shell from the tire tube'. The invention also includes other` features whereby such repair part may carr both the European and the American va ves roper, or either 'of such valves proper. h e invention includes other features which will be hereinafter more fully described.

Referring to the drawings, which 'illustrate several forms of the invention:

Figure 1 is a diametrical section of the .valye shell, showing the invention in elevation? Fig.` 2 is a diametrical section of' both parts. Fig. `3 -is an altern invention.

Fig. 4 is a cross-section on the line 4-4 inFigl. 'l l Referring to the drawings, let A indicate 05 a valve shell voi" the European type which comprisesgenerally a tubular member having near its top a tapered shoulder B, its upper end being slotted as shown at `The valve shell A. is adapted normally to receive a valve proper, the working parts of which are illustrated in Figure 3. This valve proper comprises a plug having a central bore D and a lateral opening E, which plu extends into the valve shell, and is provided te therein with an elastic sleeve F in the form of a `rubber tube which normally hugs the exterior of the plug, and so-closes the opening E. Air entering the central b re D ative' form of the passes outwardly through the lateral opene0 p ing E and separates the elastic tube from the plug sufliciently to permit its escape. intothe lower part of the valve shell. Theplug isprovided with a tapered shoulder G adapted to engage the tapered shoulderB formed '35 in the valve shell and the elastic sleeve F usually extends up suliciently to cover the shoulder G, and thus forma packing for the4 valve proper. It will be understood that theordinary European type/of valve A proper does not conform in its upper part to Figure 3 but is provided with a screwthreaded nipple of smaller diameter adapted t0' receive a pump coupling. It' is also formed with lugs which enter the slots C and are held in place by asleeve or coupling similar to that illustrated at H in' Fig. 3. The type of valve thus described. while in common use a-broad, is not adapted Ato receive a tire gauge so that itis practically impossible to determine the pressures in tires to which the valvev is applied For 'this and other reasons it is desirable t0 provide a means for substituting a supplemental part, by means of which the'valve may be 105 reconstituted to provide a working struc` ture when the original insides are injured or destroyed. It is also desirable that such replacement part lshall be capable of operative connection with a tire gauge. Tothesc llo ends in one `form of the invention l provide a supplemental cas J which is adapted to receive Within .it a valve proper and Worlringparts as indicated by the letter l,

' Which valve parts are of the well-known single suppiernen;

Schrader type. Fihe lower end or the' casing ll carries 4a packing L which is preferably `tapered to seat on the shoulder B of the Shell A. rlhis packing is preferably carried in a groove M, as bestseen in Fig. 2.

The suppiementai casing J is best formed with an internal thread N at its upper end and a shoulder @l which is tapered to engage a packing li carried by the valve insides. Ast the lower end of the supplementai casing il is a shouider Q adapted to serve as an abutment for the spring-holder it of the valve inside.

The' exterior of the supplemental casing; is formed 'with lugs S Si (see Figs. l and the shell A.

il which .fit in the slots C of l The coupiinjnsleeve H bears against an intezeral'-oollar i i) andv screws on the shell A until itie'paoiring lh is suiiiciently compressed to maire a tight joint.

By means othis construction the old insides: may he deliberately removed and the nevv 'parts .substituted Without necessitating any. change in the connection of thevalve shellvvith the tire tube, and the valve may be thus fitted for the reception of a Schrader inside for connection 'with a gauge.

The invention further includes aconstruc'- tion such as iilustrated in Fig. 3, Whereina casing d is provided which is capable or being used either as a foreign valve or domestic valve. lin such construction the lower part ed' thel valve which has already been described is preferably formed integrali with the upper part of casing, and the upper part is constructed with a thread N, shoulder and shoulder (.2 adapted to receive the Schrader insides. By this construction 4the valve may be renaired either by the introduction or a new chrader inside, or by the introduction of a new tube if desire@ both may be used concurrently.

While i have shown and described several forms or invention, l do not Wish to be iimited thereto, since various changes may be made therein Without departing from-the spirit of the invention.

my marne.

1. The combination with a shell adapted to be secured to a tube or the like, said shell having a bore adapted vtol receive .a valve proper having an elastic sleeve, and said shell having a tapered shoulder adapted to engage a packing on said valve proper, of a supplemental casing adapted to be secured to said shell, said supplemental casing being open at its top and having a bore of suiicient diameter to receive through its top the working' partsjof a standard. valve comprising a seat, and a movable vaiveproper, said bore opening into said shell and communicating with said tiretube throughl vsaid shell, said casing and valve parts being adapted to repiace said first-named valve structure When the latter is removed.

2. The combination of a shell adapted to be secured to' a tube or the like, and a supplemental casing adapted to enter said shell, said casing havinlgrI a bore at its lower end terminating in 'a lateral opening, said bore opening into said shell and communicating with said tire tube through said shell., and said lower end being adapted to receive an eiastic sleeve, and said casingr having at its upper part a bore, and a shoulder in said bore, said bore 'being of sucient diameter to receive through its top valve mechanism comprising a valve and its seat.

3. The vcombination oi ashell adapted to be secured to a tube or'the iike, and a supplemental casing adapted to enter said shell, said casing having at its terminating in a lateral opening, said bore opening into saidshell and communicating with said tire tub-e through said shell, and such lower end being adapted to receive an elastic sleeve to constitute with said opening a valve, inga tapered shoulder and a screw-threaded bore above said shoulder and being open at its top and being of sui'iicient diameter to receive through its top the Working parts of a standard valve coinprisinga valve proper and its seat.

lin Witness whereof, li/have hereunto signed lower end a bore' and the upper end or said casing: haw

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